This paper is an extension of research conducted by Banerjee and Rahim (Technometrics 29(6) (1988) 404). Their general approach is now applied to a multivariate control chart instead of a univariate control chart. A cost model for the economic statistical design of a Hotelling T2T2 control chart is derived to deal with situations involving a Weibull shock model with an increasing failure rate. Application of the proposed T2T2 control chart design is demonstrated through a numerical example. A sensitivity analysis of the model is performed.
International journal of production economic,98(2),215-226